Vim qhov pores ntawm cov ntaub so ntswg tau ntim nrog cov zaub mov lossis cov organic teeb meem hloov nrog cov zaub mov, cov pob txha tau tsim los ntawm cov ntaub so ntswg lossis cov kab mob, tab sis cov pob txha pob txha. yuav txawv thiab yuav hnyav dua.
Yuav ua li cas thaum ib yam dab tsi yog fossilized?
Thaum ib yam dab tsi fossilizes, nws dhau los ua pob txha, txhais tau tias nws tawm hauv lub ntiaj teb uas nyob deb ntawm cov kab mob. Fossils yog cov seem tshuav nyob rau hauv pob zeb ntawm ib tug tsiaj nyob: cov seem tau petrified ntau xyoo thiab lawv tawm ib tug xav txog seb tus tsiaj zoo li cas.
Puas yog fossilization hloov tshuaj?
Thaum lub sijhawm fossilisation, pob txha cov ntaub so ntswg hloov kho los ntawm ntau yam tshuaj hloov pauv. Cov pob txha pob txha tuaj yeem decomposed ob qho tib si los ntawm kev hloov ionic thiab los ntawm cov txheej txheem dissolution thiab recrystallisation. … Dhau li ntawm qhov no, lawv tuaj yeem hloov kho cov pob txha cuam tshuam los ntawm kev tso cov organic microbial mebolites hauv cov ntaub so ntswg.
Zoo li cas cov pob txha tsim chemistry?
Ntau yam tsiaj ua fossilized los ntawm faus rau hauv sediment. Rau lawv yuav tsum tau fossilized, lawv yuav tsum tau muab faus thiab tso ib tug imprint ua ntej lawv decompose. Tsiaj txhu tsis muaj skeletons tsis tshua muaj fossilized, vim lawv decompose sai heev. Tsiaj txhu nrog cov pob txha tawv yog yooj yim dua rau pob txha.
fossils ua haujlwm li cas?
Fossils yog tsim nyob rau hauv ntau txoj kev,tiam sis feem ntau yog tsim thaum tsob ntoo lossis tsiaj tuag hauv qhov chaw muaj dej thiab raug faus rau hauv av nkos thiab cov av. Cov ntaub so ntswg sai sai decompose tawm hauv cov pob txha tawv los yog plhaub tom qab. Sij hawm dhau mus sediment ua rau saum toj thiab hardens rau hauv pob zeb.
